Math Explained
Everything You Need to Succeed
A complete curriculum designed for deep understanding.
Every worksheet. Every lesson. Explained on video.
Mr. Sindel records video solutions for every single assignment — so you're never stuck.
Contact Mr. Sindel →What's Included
Plans tailored for your needs. Simple and transparent pricing.
Forever
- Blank notes
- Blank worksheets
- Video notes (lesson videos)
- Video worksheet solutions
- Review tools (Blooket, flashcards)
- Practice tests
- Answer keys (teachers only)
No credit card required
Requires identity verification
- Everything in Student plan
- Answer keys (Bryan Passwater / Ted Gott)
- Full curriculum materials
- Practice tests
- SOONTest generation tool (for teachers only)
Manual approval required — typically within 1 week
1-on-1 Tutoring with Mr. SindelAdd-On
On-demand personalized help for any AP math topic.
2025 Carlston Outstanding Teachers of America Award
Andrew Sindel
Math Teacher at Lee Vining High School
"My goal is not just to help you pass the AP exam, but to build a foundational understanding of mathematics that will serve you throughout your college career."
Teaching at LVHS since 2016
Carlston Outstanding Teachers of America Award — 2025
Recognized for excellence in mathematics education.
Always available.
This site is your primary learning resource. Explore the lessons, and reach out directly if you need help!